I'd start with H4350

With my 26" barrel, I've had good luck with both H4831 and H4350. With shorter barrels it preferable to favor the faster powder, but no need to go crazy far in that direction. Just stay off the crazy slow for caliber side of the burn chart and you will do fine. The slowest powders for caliber produce the best velocities in longer barrels.

You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.

You cannot over estimate the unimportance of nearly everything. John Maxwell